Thread while doffing in spinning-ma



etant mitin.

THOMAS L. LUDERS, or OLNEY, ILLINOIS.

Lene/rs Patent No.v 92,328, dated .my o, 1869.

IMPROVEMENT IN DEVICES FOR vHOLIIIJING- THREAD WHILE DOFFIN INSPINNING-MA- CHINES.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern:

Be it known that I, THOMAS L. LUDnRs, of Olney,-

Bobbin and Thread-Holders; and I do hereby declare` the following to bea full, clear, and exact description thereof, snficicnt to enable thoseskilled in the art to which my invention appcrtains, to fully understandand use the same, reference being had to the accompanying drawings,forming part of this specification, and in which the figure representsan elevation and partial section of my improved bobbin andthread-holder.

This invention relates to an improvement in the bobbin and thread-holderfor which Letters Patent were granted to me, dated October 20, 1868.

I have found from practical experience that the bobbin andthread-holder, above referred to, is very economical in its use, asregards yarn saved, over the bobbin and thread-holder iirordinary use;but it is liable to objection, on account of the time lost in fasteningthe end ofthe yarn between the spring and the base of the bobbin.

To obviate this defect is the object of my improvenient; and

It consists in the employment of a spring under the base of thebobbin-holder, to hold the yarn iirmly, by pressing against thebobbin-holder and raising it to meet two or more hooks, with the eildofthe yarn between them.

In the accompanying drawing- G represents the rail', and

b is the bobbin ou the spindle, having its lower end resting in the oaseor bobbin-holder c.

e is a spiral or other spring, having its lower end resting on the base,in, which encircles the spindle, but is capable of beiug'slid upwardthereon, the upper end of said spring pressing against the base of thebobbin-holder c, and keeping it forced upward, to meet two or morehooks, d d, leaving the end of the yarn clasped between the hooks andthe bobbin-holder or case c. y

Attached to the sliding base, m, are four or more Wiies, g, whose upperends bear against the base of the bobbin l), and encircling the spindle,and concentric with the spring e, is another spiral spring, f, whosetendency is to force the base, m, and the wires g, downward, so that thebobbin may occupy its proper place on the spindle.

The support a serves to prevent the base m being forced too far downwardby the springs.

When it is desired to doff or change the full bobbin for an empty one,the base, m, is forced upward, and the wires g, attached thereto, serveto loose the bobbin from the spindle, the spring e, at the same time,being compressed, so that the yarn, which has been wound below one ormoie ofthe hooks d, may be held tightly between said hooks and the casec.

The advantages attained by the employment of the hooks outside the casec, and by clasping the end of the yarn between them, are as follows:economy of time in making the change from full to empty bobbin, and noloss of yarn.`

Having thus fully described my invention,

What Iclaim as new, and desire to secure by Letters Patent, is-

l. The hooks d d, in combination with the case c, spring e, base m, andsupport n, substantially as described.

2. The combination ofthe wires or rods g g, spring f, base m, andsupport n, substantially as described.

To the above I have signed my'name, this 24th day of March, 1,869.

THOS. L. LUDERS. Witnesses:

W. A.vWInDnRsHE1M, J. W. HAMPTON, Jr.

